BH3541F(2009) 데이터 시트보기 (PDF) - ROHM Semiconductor

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BH3541F
(Rev.:2009)

Stereo Headphone Amplifiers

ROHM Semiconductor 

BH3541F, BH3544F, BH3547F, BH3548F

Technical Note

●Electrical characteristics (Unless otherwise noted, Ta=25°C,VCC=5V,RL=32Ω,f=1kHz,BW=400～30kHz

BH3541F : VIN=0dBV, BH3544F, BH3547F, BH3548F : VIN =-6dBV)

Parameter

TYP.

Symbol

Unit

BH3541F BH3544F BH3547F BH3548F

Conditions

Quiescent current

IQ

7

3.7

6.5

mA VIN=0Vrms

Mute pin control voltage H

VTMH

1.6<

V Mute OFF

Mute pin control voltage L

VTML

<0.3

V Mute ON

Gain

GVC

0

6

dB

-

Gain difference between

channels

△GVC

0

dB

-

Total harmonic distortion

THD

0.02

0.05

0.02

% BW=20～20kHz

Rated output 1

Rated output 2

Rated output 3

RL=32Ω,THD<0.1%

PO1

31

46

31

mW

(BH3541F,BH3544F,BH3548F)

RL=32Ω,THD＜0.3%

(BH3547F)

RL=16Ω,THD<0.1%

PO2

62

77

62

mW

(BH3541F,BH3544F,BH3548F)

RL=16Ω,THD＜0.5%

(BH3547F)

PO3

-

120

mW

RL=8Ω,THD＜0.25%

(BH3548F)

Output noise voltage

VNO

-93

dBV BW=20～20kHz,Rg=0Ω

Channel separation

CS

-90

-87

-90

dB Rg=0Ω

Mute attenuation

ATT

-80

dB Rg=0Ω

Ripple rejection

RR

-57

dB fRR=100Hz,VRR=-20dBV

Input resistance

Rin

180

90

kΩ

-

●Reference data

BH3541F/BH3544F

BH3541F/BH3544F

BH3541F/BH3544F

Fig. 1 Quiescent current vs.

power supply voltage

Fig. 2 in DC current vs.

power supply voltage

Fig. 3 Output voltage vs.

Mute control voltage

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© 2009 ROHM Co., Ltd. All rights reserved.

2/8

2009.07 - Rev.A

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